Difference between revisions of "Fseek"

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(little save due to many crashes of my pc)
 
m (fseek -w and -r are fucked)
 
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| l      || ''/fseek -l <name> <linenumber>''. Moves the pointer to the begin of the specified line.
 
| l      || ''/fseek -l <name> <linenumber>''. Moves the pointer to the begin of the specified line.
 
|-
 
|-
| n      || ''/fseek -n <name> <next line>''. Moves the pointer to the begin of the next line.
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| n      || ''/fseek -n <name>''. Moves the pointer to the begin of the next line.
 
|-
 
|-
| w      || ''/fseek -w <name> <wildcard>''. Moves the pointer to the next occurence of a string matching  this wildcard from the current position of the pointer (see example below).
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| w      || ''/fseek -w <name> <wildcard>''. Moves the pointer to the next occurrence of a string matching  this wildcard from the current position of the pointer (see example below).
 
|-
 
|-
| r      || ''/fseek -r <name> <regex>''. Moves the pointer to the next occurence of a string matching the regex.
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| r      || ''/fseek -r <name> <regex>''. Moves the pointer to the next occurrence of a string matching the regex.
 
|}
 
|}
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'''Note''' that mIRC will internally set the pointer to byte 0 and scan for <linenumber> - 1 CR/LF combinations when using the -l switch.
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== Example ==
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Let's imagine with have the following file "moo.txt" in our mircdir:
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This is my first line containing moo!
 +
This is just a senseless text file.
 +
mooooo
 +
thats the end.
 +
moo?
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We have opened this file using ''[[Fopen|/fopen]] moo moo.txt''
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/fseek -l moo 2
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This example would set the position of the pointer to the begin of the second line (infront of ''This is just a senseless text file.'').
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/fseek -n moo
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This example would set the pointer to the begin of the next line (infront of 'mooooo').
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 +
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/fseek -w moo *the*
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This example would move the pointer to the beginning of the next line matching *the* (that is line 4 in our example). In case the wildcard text matches the current line and the pointer did not pass the wildcard text yet, the pointer will stay at the current position.
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[[Category:File Handling]][[Category:Commands]]

Latest revision as of 20:45, 25 July 2010

Sets the read/write pointer to the specified position in the file.

/fseek <name> <position>


The following switches can also be used to move the file pointer:

Switch Meaning
l /fseek -l <name> <linenumber>. Moves the pointer to the begin of the specified line.
n /fseek -n <name>. Moves the pointer to the begin of the next line.
w /fseek -w <name> <wildcard>. Moves the pointer to the next occurrence of a string matching this wildcard from the current position of the pointer (see example below).
r /fseek -r <name> <regex>. Moves the pointer to the next occurrence of a string matching the regex.

Note that mIRC will internally set the pointer to byte 0 and scan for <linenumber> - 1 CR/LF combinations when using the -l switch.

Example

Let's imagine with have the following file "moo.txt" in our mircdir:

This is my first line containing moo!
This is just a senseless text file.
mooooo
thats the end.
moo?

We have opened this file using /fopen moo moo.txt


/fseek -l moo 2

This example would set the position of the pointer to the begin of the second line (infront of This is just a senseless text file.).


/fseek -n moo

This example would set the pointer to the begin of the next line (infront of 'mooooo').


/fseek -w moo *the*

This example would move the pointer to the beginning of the next line matching *the* (that is line 4 in our example). In case the wildcard text matches the current line and the pointer did not pass the wildcard text yet, the pointer will stay at the current position.